The last DATW we utilized "Kids Nite Out" where a babysitter comes to your room.
Worked out great for our 2 boys, although the babysitter had a little trouble keeping them in line.
She took them to the resort arcade and the playground and then they went and had something to eat and back to the room, all on our dime mind you.
They were sound asleep when we got back.
2 kids, 9 hours, $176+20tip+40 we left for dinner(she left the change), etc=$236
But it was worth it to have that time alone (well, just DW and I and all the other DATWer's) and not have to worry about picking them up and transferring them back to the room afterwards.
We were going to go that route again as I dont want to have to deal with them whining "Can we go now?" every 10 mins (yes, that is what would happen)
We had thought about Camp Dolphin for the Poly meet but they close at 12 and that would mean Jellyrolls would need to be cut short, so.......
Most of the clubs are $11 per child, so that is more expensive than KNO which is only $18.50 for 2, but it is $16 for one, so those of you with only one may want to go the club route.